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PatchSiren cyber security CVE debrief

CVE-2016-7762 Apple CVE debrief

CVE-2016-7762 is a WebKit cross-site scripting issue affecting Apple iOS versions before 10.2. The vulnerability was publicly recorded on 2017-02-20, and NVD classifies it as medium severity with network attack vector and required user interaction. The issue can allow malicious web content to influence Safari in a way consistent with XSS behavior, so updating to the fixed iOS release is the key mitigation.

Vendor
Apple
Product
CVE-2016-7762
CVSS
MEDIUM 6.1
CISA KEV
Not listed in stored evidence
Original CVE published
2017-02-20
Original CVE updated
2026-05-13
Advisory published
2017-02-20
Advisory updated
2026-05-13

Who should care

iPhone and iPad users running iOS before 10.2, mobile device administrators, enterprise security teams managing Apple fleets, and anyone responsible for Safari/browser risk on older iOS devices.

Technical summary

NVD maps the issue to CWE-79 (improper neutralization of input during web page generation). The recorded CVSS v3.0 vector is AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N, indicating remote reachability, low attack complexity, no privileges required, and a user action requirement. The affected product scope in the supplied record is iPhone OS/iOS up to 10.1.1, with the description stating iOS before 10.2 is affected. The reference trail points to Apple support advisory HT207422.

Defensive priority

Medium priority. The issue is remotely reachable and can impact browser content handling, but it requires user interaction and is not scored as impacting availability.

Recommended defensive actions

  • Update affected iPhone and iPad devices to iOS 10.2 or later.
  • Prioritize patching any fleet devices still on iOS 10.1.x or earlier.
  • Use MDM or endpoint compliance checks to identify and quarantine unsupported or unpatched devices.
  • Limit exposure to untrusted web content on legacy devices until they are updated.
  • Review browser-security guidance and user awareness controls for phishing or malicious-link scenarios on managed iOS endpoints.

Evidence notes

This debrief is based on the supplied NVD record and the referenced Apple support advisory. The corpus states: iOS before 10.2 is affected; the weakness is CWE-79; NVD assigns CVSS v3.0 AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N; and Apple advisory HT207422 is linked as the vendor reference. No exploit details are included beyond the supplied summary.

Official resources

Publicly recorded on 2017-02-20; the supplied record marks the CVE as modified on 2026-05-13. Use the CVE published date for timing context.